Phone · Samsung · Galaxy S20 Plus
Samsung Galaxy S20 Plus Water Damage Repair
Water Damage Repair guide for the Samsung Galaxy S20 Plus
Before you begin
Tools
- Heat gun or iOpener
- Precision Phillips #00 screwdriver
- Plastic opening picks
- Suction handle
- Plastic spudger
- Tweezers
- Soft-bristled ESD brush
- Magnifying lamp
Parts / materials
- 99% Isopropyl alcohol
- Pre-cut back cover adhesive sticker
- Microfiber cloth
Safety
- Disconnect the battery immediately after opening to prevent electrical shorting.
- Wear eye protection when handling isopropyl alcohol and using heated tools.
- Do not heat the rear panel above 80°C (176°F) to avoid damaging internal components.
- Work in a well-ventilated area when using high-concentration isopropyl alcohol.
Overview
Step-by-step
- 1
Power Off the Device
1 minTurn off the Galaxy S20 Plus immediately to stop active current from causing further electrical short circuits.
- 2
Eject the SIM Card Tray
1 minInsert a SIM eject pin into the hole on the top edge of the frame and remove the SIM tray.
- 3
Heat the Rear Glass
3 minApply a heat gun or heated pad to the rear glass for 2-3 minutes to soften the perimeter adhesive.
- 4
Slice Rear Glass Adhesive
5 minAttach a suction handle to the lower glass, pull up to create a gap, and insert an opening pick along the edges.
- 5
Remove the Rear Cover
2 minSlice through all remaining edge adhesive with opening picks and lift the glass cover off the frame.
- 6
Unscrew the Midframe Cover
3 minRemove the 15 Phillips #00 screws securing the wireless charging pad and upper bracket.
- 7
Detach Wireless Charging Coil
2 minUnpeel the copper tape sections and carefully pry the wireless charging antenna and NFC assembly out.
- 8
Disconnect the Battery Cable
1 minUse a plastic spudger to pry the battery connector straight up from the motherboard to cut power.
- 9
Remove the Loudspeaker Assembly
2 minPry up and remove the bottom speaker housing to reveal the sub-board beneath.
- 10
Disconnect Display and Interconnect Cables
2 minUnplug the display ribbon cable and the two interconnect flex cables from both boards.
- 11
Extract the Main Motherboard
3 minRemove the single Phillips screw near the top left, then carefully lift the main motherboard out of the phone chassis.
- 12
Extract the Lower Sub-Board
2 minUnscrew and lift out the USB-C charging port sub-board from the lower frame.
- 13
Clean the Motherboard with Alcohol
10 minSubmerge the motherboard in 99% isopropyl alcohol and gently brush away liquid residue and corrosion using a soft ESD brush.
- 14
Clean Sub-Board and Connectors
5 minScrub the sub-board, camera modules, and ribbon cable contacts thoroughly with isopropyl alcohol.
- 15
Dry Circuit Components Completely
15 minLeave the cleaned motherboard and sub-board in a warm, dry area for at least two hours to ensure full evaporation.
After your Samsung Galaxy S20 Plus water damage repair
Power the Galaxy S20 Plus back on and test the water damage repair function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Samsung Galaxy S20 Plus job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Samsung Galaxy S20 Plus repair context in the encyclopedia, or open related DIY guides.
